Sentences with phrase «warm period saw»

The Medieval Warm Period saw warm conditions over a large part of the North Atlantic, Southern Greenland, the Eurasian Arctic, and parts of North America.

Not exact matches

Depending on the circumstances, contact with babies is limited to short periods of being held, and sitting beside the incubator (the see - through box that keeps babies warm and surrounded by clean, humid air).

Researchers from the Niels Bohr Institute have analysed the natural climate variations over the last 12,000 years, during which we have had a warm interglacial period and they have looked back 5 million years to see the major features of the Earth's climate.

They'd seen slowdowns in the past, often associated with natural cycles in the Earth's climate — England pointed to periods when the Earth has taken a break from warming, such as from 1945 to the late 1970s.

A Swiss - led group using tree - ring data to look at Central European summer climate patterns during roughly 2,500 years saw that periods of prolonged warming and of colder than usual spells coincided with social upheavals.

If climate change gets catastrophic — and the world sees more than 6 degrees Celsius warming of average temperatures — the planet will have left the current geologic period, known as the Quaternary and a distant successor to the Ordovician, and have returned to temperatures last seen in the Paleogene period more than 30 million years ago.

«What we'll see in the next 50 to 100 years is not going to be such a rapid warming from one time period to the next.»

Over the last decade, rock avalanches and landslides have become more common in high mountain ranges, apparently coinciding with the increase in exceptionally warm periods (see «Early signs»).

Climate scientists, however, are only too aware of the problems (see Climate myths: It was warmer during the Medieval period), and the uncertainties were both highlighted by Mann's original paper and by others at the time it was published.

In contrast, the consensus view among paleoclimatologists is that the Medieval Warming Period was a regional phenomenon, that the worldwide nature of the Little Ice Age is open to question and that the late 20th century saw the most extreme global average temperatures.

«It's a period when Mars was probably transforming from a wet, warm place — perhaps a harbor for life — to what we see now: a dry, cold, inhospitable environment, not good for life,» Agee says.

Both tree species have seen many climate changes during their time on Earth — from extremely warm periods to ice ages — and have slowly advanced across the landscape.

«We could see that the concentration of carbon dioxide and solar radiation was higher during the cold period between the two warm periods compared with the cold period before the first warming 15,000 years ago.

By comparing the small oscillations in cosmic ray rate and temperature with the overall trends in both since 1955, Sloan and Wolfendale found that less than 14 percent of the global warming seen during this period could have been caused by solar activity.

But there were countless warm periods in the past that resulted from quite different conditions than those prevailing today (see this link on the Medieval period, or this link on the «mid-Holocene» period).

The reason I was mentioning the Medieval Warm Period and the Little Ice Age (if they even existed) as important to me was that we have seen some wild fluctuations in the earth's temperature in those periods while the CO2 atmospheric concentrations was a «constant».

See the RealClimate discussions of the Little Ice Age and Medieval Warm Period for explanations of why both the Viking colonization of Greenland and the freezing of the River Thames actually tells us relatively little about past climate change.

See above for my comments on global warming vs global cooling which depend strongly on the period of data.

As a consequence, their results are strongly influenced by the low increase in observed warming during the past decade (about 0.05 °C / decade in the 1998 — 2012 period compared to about 0.12 °C / decade from 1951 to 2012, see IPCC 2013), and therewith possibly also by the incomplete coverage of global temperature observations (Cowtan and Way 2013).

If you look at the proxy portion of the new Moberg graphic, you see nothing that would be problematic for opponents of the hockey stick: it shows a striking Medieval Warm Period (MWP), a cold Little Ice Age and 20th century warming not quite reaching MWP levels by 1979, when the proxy portion of the study ends.

See this, p. 11, where Lindzen writes: «Not surprisingly, efforts were made to get rid of the medieval warm period (According to Demming [sic], 2005, Jonathan Overpeck, in an email, remarked that one had to get rid of the medieval warm period.

Predicted changes in orbital forcing suggest that the next glacial period would begin at least 50,000 years from now, even in absence of human - made global warming (see Milankovitch cycles).

Zooming in on the period after 1970, one sees a record of largely unabated warming, with temperatures increasing steadily accompanied by some short - term variability driven by El Niño and La Niña events, and also by major volcanic eruptions like Pinatubo in 1992.

This expected large sea - level rise does of course not surprise us paleoclimatologists, given that in earlier warm periods of Earth's history sea level has been many meters higher than now due to the diminished continental ice cover (see the recent review by Dutton et al. 2015 in Science).

The data showed that while the latter continent saw a temporary warm period in medieval times, central Asia most likely didn't.

Paleoclimate data reveal instances of rapid global warming, as much as 5 — 6 °C, as a sudden additional warming spike during a longer period of gradual warming [see Text S1].

A previous warm period about 130,00 years ago, is the Eemian — sea level 5 - 9 meters higher than today, and enormous storms, not seen in the Holocene.

Tumeric!I never out of it, I once had a painful feet, that once made me cried, after a visit to my doctor, I was given some pain killer, which work for a period, I was advised to use tumeric with some warm milk before bedtime, about three nights, after that period the pain was gone.on my date to see to doctor, After a few Questions and checks, I was told it was a kidney problem I had, after several visits I was discharged, and now free from pains.

Warmer and more lustrous to the eye, this understated material perfectly complements the soft, period hue of this Stone Grey car and you can see it everywhere — window surrounds, engine grille, engine lid hinges, slam panel, light bezels, badging... Singer takes nickel plating to wonderful, perverted extremes.

We usually see these tropical whales in mid-summer or during an extreme period of warming in our local waters.

If the oceans were driving energy into the atmosphere (over a significantly long enough period to account for observed warming trends in the atmosphere, then I imagine we'd also see the TOA warming and consequently more energy (power, taken per unit time) radiating into space.

If the latter scenario comes, then looking back with 20/20 hindsight, the start of the cooling period will be seen to be the maximum of the warming period.

I particularly enjoyed the slides that, when combined (1) provided an overview of hotter and cooler CO2 molecules as it relates to how they are seen from outer space and from profile — because this will make it easier for me to explain this process to others; (2) walked through the volcanic and solar activity vs assigning importance to CO2 changes — because this another way to help make it clearer, too, but in another way; (3) discussed CO2 induced warming and ocean rise vs different choices we might make — because this helps point out why every day's delay matters; and (4) showed Figure 1 from William Nordhaus» «Strategies for Control of Carbon Dioxide» and then super-imposed upon that the global mean temperature in colors showing pre-paper and post-paper periods — because this helps to show just how far back it was possible to make reasoned projections without the aid of a more nuanced and modern understanding.

[Added Dec. 31, 9:00 a.m. In mid November, he made a prediction, posted on the National Science Foundation website, that the period from December through February would see unusual cold in the east, as the west remains warm given the power of this ElNiño.]

In 1880 — 1919, before the appearance of the strong warming trend over this region, WEIO tended to be anomalously colder than EEIO most of the time, and thus we see the strong negative events show in Fig. 4, since we have used the climatology of the entire period from 1880 to 2004 as the reference.

I would like to see discussion about the most recent period of rapid global warming... leading to the Paleocene Eocene Thermal Maximum (PETM) about 55 million years ago... including differences and similarities to the climate projections for this century... and beyond.

And you find the same limit and phaenomena in the Novgorod Arch Bishop See area, the extreemly fameous russian wooden cathedrals from the warm mideival period.

If the divergence occurred 150K years ago, polar bears have seen one warmer period.

So, if this new estimate of the age of polar bear divergence from brown bears is right, polar bears have seen 2 periods warmer than the recent past.

But this is in a period that the Bureau has predicted is likely, based on statistical analysis of historical data and current sea surface conditions, to be warmer than the historical average (see here.

Given the total irrelevance of volcanic aerosols during the period in question, the only very modest effect of fossil fuel emissions and the many inconsistencies governing the data pertaining to solar irradiance, it seems clear that climate science has no meaningful explanation for the considerable warming trend we see in the earlier part of the 20th century — and if that's the case, then there is no reason to assume that the warming we see in the latter part of that century could not also be due to either some as yet unknown natural force, or perhaps simply random drift.

But there were countless warm periods in the past that resulted from quite different conditions than those prevailing today (see this link on the Medieval period, or this link on the «mid-Holocene» period).

And surely the fact that having just that circumstance — with strong el Nino at the start of the cherry picked period and la Nina's at the tail — should see a clear temperature «drop» instead of merely levelling off confirms the existence of an underlying warming trend.

The natural variability «flip - side» to these hiatus decades, are periods where there is greater - than - average surface warming (see inset in Figure 2).

What is clear is that uncontrolled emissions will very soon put us in range of temperatures that have been unseen since the Eemian / Stage 5e period (about 120,000 years ago) when temperatures may have been a degree or so warmer than now but where sea level was 4 to 6m higher (see this recent discussion the possible sensitivities of the ice sheets to warming and the large uncertainties involved).

We are looking at the end of this interglacial period based firmly upon historical cycles and norms without any acceleration when compared to previous cycles, as that happens, more warm would be seen as a blessing.

The Intergovernmental Panel on Climate Change (big pdf file) and other climate - research groups have largely rejected the hypothesis that variations in the sun's behavior could have played a big role in warming since 1950 (the period in which the panel and the vast majority of climate specialists see abundant evidence that a human - caused buildup of greenhouse gases is the main influence).

For most recent sampling see: New Peer - Reviewed Study finds «Solar changes significantly alter climate» (11-3-07)(LINK) & «New Peer - Reviewed Study Halves the Global Average Surface Temperature Trend 1980 — 2002» (LINK) & New Study finds Medieval Warm Period «0.3 C Warmer than 20th Century» (LINK) For a more comprehensive sampling of peer - reviewed studies earlier in 2007 see «New Peer - Reviewed Scientific Studies Chill Global Warming Fears» LINK]

«A significant share of the warming we saw from 1980 to 2000 and at earlier periods in the 20th Century was due to these cycles â $ «perhaps as much as 50 per cent.

I look at the transitions from glacial to interglacial and see that warming is extremely rapid, overshoots by a bit, then never again exceeds the initial overshoot during the rest of the interglacial period.